Interpreting Line Graphs

Front

What is a line graph?

Back

A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments. It is used to visualize trends over time.

Front

What does the x-axis represent in a line graph?

Back

The x-axis typically represents the independent variable, often time or categories, in a line graph.

Front

What does the y-axis represent in a line graph?

Back

The y-axis represents the dependent variable, which is the value being measured or observed in relation to the independent variable.

Front

How can you determine the highest value in a line graph?

Back

To determine the highest value, look for the highest point on the line graph, which corresponds to the maximum value of the dependent variable.

Front

What does a steep slope in a line graph indicate?

Back

A steep slope indicates a rapid change in the value of the dependent variable over a small change in the independent variable.

Front

What does a flat line in a line graph signify?

Back

A flat line indicates that there is no change in the value of the dependent variable over the range of the independent variable.

Front

How can you identify trends in a line graph?

Back

Trends can be identified by observing the overall direction of the line (increasing, decreasing, or constant) over time.

Front

What is the significance of data points in a line graph?

Back

Data points represent specific values of the dependent variable at given values of the independent variable, providing a visual representation of the data.

Front

How do you read values from a line graph?

Back

To read values, locate the data point on the line graph and trace vertically to the y-axis for the dependent variable value and horizontally to the x-axis for the independent variable value.

Front

What is interpolation in the context of line graphs?

Back

Interpolation is the process of estimating unknown values that fall within the range of known data points on a line graph.